the numRegions for
	the vsindex.
	The Charstring may or may not start with a width value. If the first
	non-blend operator has an odd number of arguments, then the first argument is
	a width, and is popped off. This is complicated with blend operators, as
	there may be more than one before the first hint or moveto operator, and each
	one reduces several arguments to just one list argument. We have to sum the
	number of arguments that are not part of the blend arguments, and all the
	'numBlends' values. We could instead have said that by definition, if there
	is a blend operator, there is no width value, since CFF2 Charstrings don't
	have width values. I discussed this with Behdad, and we are allowing for an
	initial width value in this case because developers may assemble a CFF2
	charstring from CFF Charstrings, which could have width values.
	FNr